James shepard



taies stmt ffice.

Letters Potent No.- 78,021, dated May 1.9, 1868; autedated May 7, 1868 IMPROVEMENT MACHINE FOB. WIRING PANS.

@In Stlnhnlt nfimh tu in time AEnters atmt ant making4 part ni the sami.

'ro ALL WHOM' 1T AMAY CONGERN: V l Be it known that I, JAMES Su'EPARD, of Bristol, in the county of Hartford, and the State of Connecticut, have invented a new and improved TinsmithsMachine for Wiring Sguare Pans; and I d0 hereby declare that 4the following is a full, clear, und exactfdescription thereof, which will enable others`skilled in the art to make* and .use the same,` reference being had, to the accompanying drawings, forming part of this specification, in wliich- Figure l is a perspective view of my invention.

Figure 2 isa front elevation of the two rollers.

Figure 3 is a side elevation of thesame.

Similar letters of reference indicateflike parts.

.My invention consists in the use or employment of a square roller, die, orswage, fitted to revolve in a suitable frame immediately beneath a round roller with a. narrow edge, like the upper rollerv oi' a common wiring-machine. t

A designates the squareroller, die, or swage. Y

B designates a pin, on which the square roller, die, or swage, A, revolves.

`C designates the frame.

D designates the upper roller.

E designates a spring, for raising the upper roller, D.

F designates a shaft, to which theupper roller, D, is secured.

Cr designates a crank, for turning the shaft F with the upper roller, D.Y

.H designates a pivoted or hinged box, Vin which one end of the shaft F revolves.

I designates a half box over the other end .of the-shaft F. 1

J designates a follower, for lowering the box I with the shaft Fand the upper roller D.

L designa-tes a lever, for operating the follower. J.

M designates a gauge, for guiding the edge of the pan.

N. designates la. screw, for adjusting the gauge M.

`O designates a section of metal formed aroundthe wire.

P designates alsectienof the wire.

/Q designates a cord or rope; for operating the lever L. y

The `cord or rope, Q, should be connected with a lever under the tinsmiths bench, so that the upper roller,

- D, can hereadily operated with the foot of an operator. The square roller, die, or 'swage, A, should have u. small bead on itsfront dge precisely thesame shapeas the bead on the lower` roller of a common wiringmachine: It should be placed exactly below the centre of the upper roller, D, as shown in iig. 2.

The two rollers should be so arranged' that,'when they are brought together, the thin edge of theupper roller, D, and the bead of the square roller, die, or swage, A, should nearly meet, the thin edge of 'the upper roller, D, slightly projecting to the front, as shown inlgs. y

It will -be seen at a glance that the upper roller, D, is brought in contact with the square roller, die, or swage, A, when one ofits straight edges lies horizontally, as shown in fig. 2, it cannot revolve unless the upperroller, D, is raised.

To use my machine, taken. square pan that-has been formed and the metal turned on the edge, preparatory to receiving the wire, and place the wire in its intended place. Set the gauge M at a distance from the beads of the'two rollers to correspond with the idiameter ofthe wire and thickness of the metal, as shown in iig. 3.

Place the edge of the pan against the gauge M, with the inside 'of the pan over the square roller, die, or swage, A, and bring down the upper roller D. With the right hand turn the crank G, and iat the same time pull the` p pan towards you, with the left hand, when it will slide over the square roller, die, or swage, and move with the l circumference of the upper roller, D, luntil the square roller, die, or swage, A, is inthe corner of the pMlp.

Then revolve the panonc-fourth of 'a revolution, and the square roller, die, or swage, A', will revolve .with it. When the operator revolves the pan with the lower square roller, die,or swage, A, he must allow the upper roller, D, to'rise a little, but must keep sucent pressure on it to swagethe metal around the wire. After the upper roller, D., has passed thecorner of the pan,'b ring it down again, and proceed in like manner around vthe pan.

If a' three-square or other shapedrpan is desired to bc wired, simply make the lowerl roller, die, or swagc, A, -to' correspond with the shape of the pan'to be wired;

I The ordinary wiring-machine is designed only for straight and round work. It consists of'two round rollers, generally about three inches in diameter, Withl a bread on the front' edge of both, arid both rollers firmly secured or welded. to suitable shafts, which shafts are'providedwith gearing, and properly adjusted in a. suitable frame- It is evident that'this machine cannot wire the square corner of a pan, but sometimes it is used for partly wiring square-pans by first wiring one' side, as near the corner as they can, and thenl taking it ont'of the machine, and put-ting it in again to wire another side,and so on, making four times that one pan has to be putin the machine,

` and then the ,corners are'nished with the pene of a hammer.

Other tinsmiths wire the pans entirely with the pene of the hammer, while others use a'squarevpan-swage, which is nothing more than a hinged hammer.

By my invention, I-produce a'A machine for wiring square pans which will'nish a pan without taking it fromor stopping the machine. It form-s the metal, even in the extreme corners, firmly around the-wire. It performs itswork much better and nicer than it canb'e done vby any other known mode. It ssimple in construction, requires no geared wheels, and can, consequently, be made at a very low price. It is the only machine known to'the makers of tinsniiths machines in this country for doing the same work, and is supposed to be the only one in the world.

I do not claim the lever L, for lowering the upper roller, D; neither dol claim the roller, D, the frame 0, or the gauge M; hut:

WhatI do claim as new, and de'siro to secure by Letters Patent, is- The combination of the roller-die, D, with the revolving die,.A, constructed and operating as described. i p JAMES SHEPARD.

Witnesses: l

Wan,A G. CUn'rIss, C. A'. Snurnnn. 

